hi i use xfce and chromium. after 10 minuts (my settings in power managment) screensaver start. it`s really annoying when i watching movie in chromium. can i disable screensaver when i watching movie in web browser and how to do it?

From Archwiki:
Flash
There is no native way to disable XScreenSaver for Flash, but there is script named lightsOn with support for Firefox’s Flash plugin, Chromium’s Flash plugin, MPlayer, and VLC.
It is a sh script and will need to may autostarted as login or together with starting chromium…

The screen blanking while trying to watch something is annoying. I used to use “Caffeine” but then I started using the Mate desktop and it didn’t work as Mate was new then. I don’t know if Caffeine works with XFCE… ?

Alternative

What I do now (currently using XFCE) is just create a launcher for or run in a terminal:

xset s off -dpms

When you want screen blanking restored create a second launcher or run in terminal:

xset s on -dpms

I am no Linux expert but this is simple and works for me. Please somebody correct me if I have mistakenly given bad advice. Hope you find a solution.

The screen blanking while trying to watch something is annoying. I used to use “Caffeine” but then I started using the Mate desktop and it didn’t work as Mate was new then. I don’t know if Caffeine works with XFCE… ?

i use the caffeine-ng from AUR under i3-wm, i guess it should work with MATE. Which one are you trying to use?

OBS: That would be nice if we find a script to “read” user idle time and then set the commands we want after x time of inactivity.